The document introduction: * "The individual function of ideological and political education refers to the function and influence of ideological and political education on promoting the all-round development of the educated, which is the direct purpose of ideological and political education and its ontological function. Social function refers to the positive role that ideological and political education can play in social development. Individual sexual function is the basis of social function, because the direct function of ideological and political education is to promote human development, and its social function can only be realized through the promotion and externalization of individual sexual function. Ideological and political education influences social life and promotes social, political and economic development through the intermediary of "human development". The social function of ideological and political education is an important measure of individual sexual function, because only ideological and political education promotes the all-round progress of society to a great extent can individual sexual function be well played. " * This paper reveals the dialectical relationship between individual function and social function of ideological and political education. This is in line with the relationship between individuals and society. Starting from people-oriented, ideological and political education highlights people's all-round development through practice, which is also the direct purpose of ideological and political education. On the one hand, man is the subject of practice and the practitioner of social activities, and the all-round development of society can be promoted through the all-round development of man. This emphasize that necessity of individual sexual function. On the other hand, ideological and political education promotes the overall progress of society, which in turn provides better conditions for individual development. This emphasize that necessity of social function. However, the function of ideological and political education is always realized through the intermediary of "human development", and it can only play its role by influencing people. Doing a good job in human development is the starting point and the end result of ideological and political education. Starting from people, people-oriented and grasping the line of all-round development of people. Obviously, it is not difficult to understand these two functions of ideological and political education from the perspective of the relationship between people and society. Individuals and society are interdependent and mutually restrictive. Man is an individual in society, and society is a society composed of countless individuals. People's development needs all kinds of conditions provided by society. The existence and development of any society is the result of all individuals and their collective efforts, and the sum of all individual activities constitutes the overall movement and development of society. The function of ideological and political education is also expounded from the perspective of people and society, but these two functions are closely related and should be organically combined to give full play to the function of ideological and political education.